Quoted from Lambow:Assuming you have LED's in your machine. Try- Open the coin door, Press the black button until Main Menu comes up. Press the red button a few times until A. Adjustments. then hit the black button. A1. Standard Adj. should show up, (if not red button until it does) hit the black button, then the red button 25 times until A1 25 Allow dim Illum comes up hit the black button to highlight then the red button to select No. Then the green button a few times to exit.
Was dealing with the same issue. This did the trick. Thanks.